Summary

This is a function that allows the longitudinal curves of Path Linked Entities to be expressed as smooth continuous curves.

How to Run

[Curve Library Mode]

Ribbon Menu > [Curve Library] Tab > [Expression Entity] Group > Path Linked > Variation Group

Explanation

[Tab] Define

[Variation Group]
Adds a new Variation Group or checks or edits the selected Variation Group.
[Classification]
- Group Name : Enter the name of the Variation Group.
[Select Target]
Select Path Linked Entity to be included in Variation Group.
[Variation Origin]
(per Vertex Set) Sets the base line for calculating Δd (difference in distance from the baseline) of the start and end sections.
- Left-Bottom
- Center-Bottom
- Right-Bottom
- Left-Center
- Center-Center
- Right-Center
- Left-Top
- Center-Top
- Right-Top
- Path Location
[Variation Type]
Sets the Variation Setting method.
- By Auto Function : Interlocks curves from registered Auto Functions.
- User Defined : The user defines the curve himself.
- Select Auto Function : Select an Auto Function to interlock the curve. Only Auto Functions registered in the current mode can be selected.
- Select Symmetric Plane : Select Constraint Plane to be applied as Symmetric Plane. Symmetric Plane means the location where the tangent of the variation curve is parallel to the X-axis.
- Curve Direction : Sets the direction in which the curve is calculated from the Symmetric Plane.
  - Positve : The curve is calculated in the unit length direction of the current mode.
  - Negative : The curve is calculated in the opposite direction to the Unit Length of the current mode.
- Variation Type : Select the type of variation of the curve.
  - Linear
  - Parabolic
  - Cubic
  - Polynomial
- Order : Enter the order of the curve. It is activated only in case of ‘Variation Type : Polynomial’.

Variation Type should be set for each of the Local-Y axis and Local-Z axis.
If By Auto Function is selected, the user must set the options below.
- Select Auto Function
- Select Symmetric Plane
If User Defined is selected, the user must set the options below.
- Select Symmetric Plane
- Curve Direction
- Variation Type
Variation Type (variation type of curve)
- Linear : straight line
- Parabolic : 2nd order parabolic shape
- Cubic : cubic parabolic shape
- Polynomial : polynomial form shape (directly input degree)

Reference Materials

Auto Function